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GB1480417A - Segmental readout device having magnetic circuit components - Google Patents

Segmental readout device having magnetic circuit components

Info

Publication number
GB1480417A
GB1480417A GB45059/74A GB4505974A GB1480417A GB 1480417 A GB1480417 A GB 1480417A GB 45059/74 A GB45059/74 A GB 45059/74A GB 4505974 A GB4505974 A GB 4505974A GB 1480417 A GB1480417 A GB 1480417A
Authority
GB
United Kingdom
Prior art keywords
coils
magnet
flag
numeral
degrees
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB45059/74A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Staver Co Inc
Original Assignee
Staver Co Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Staver Co Inc filed Critical Staver Co Inc
Publication of GB1480417A publication Critical patent/GB1480417A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/22—Absorbing filters
    • G02B5/24—Liquid filters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/37—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements
    • G09F9/375—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being movable elements the position of the elements being controlled by the application of a magnetic field

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Digital Computer Display Output (AREA)
  • Displays For Variable Information Using Movable Means (AREA)
  • Transmission And Conversion Of Sensor Element Output (AREA)

Abstract

1480417 Alpha-numeric displays STAVER CO Inc 17 Oct 1974 [12 Nov 1973] 45059/74 Heading G5C To indicate any numeral from 0 to 9, a readout device comprising seven segments arranged as a numeral "8" carries, behind the seven elongated window openings 14 in window plate 12, seven flags 15, each mounted on an axis parallel to its respective opening so that the flag can be turned to appear in the opening by means of a permanent magnet 38, set transversely to the axis and activated by the field from a corresponding magnetic core 42 projecting from a common magnetic back plate 58 and carrying the coil 44 of an electromagnet. To avoid interference the central three coils under the horizontal bars of the "8" are of opposite polarity to the four lateral coils, the rotating permanent magnets being correspondingly reversed. Each magnet rotates between slotted flanges 32 integral with a non-magnetic support plate 18, steps 46, 46<SP>1</SP> on the rotating part engaging shoulders 37a, 37b to limit rotation to 75 degrees, giving a bi-stable orientation of the magnet, switchable by a pulse of current of one polarity to show the flag, and the other to clear. Centre tapping of the coils facilitates circuit design (Fig. 9, not shown), including common clearing by a reverse pulse. Rotation may be limited to 60 degrees if bi-stable "memory" is not required.
GB45059/74A 1973-11-12 1974-10-17 Segmental readout device having magnetic circuit components Expired GB1480417A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US414749A US3886545A (en) 1973-11-12 1973-11-12 Segmental readout device having improved magnetic circuit components

Publications (1)

Publication Number Publication Date
GB1480417A true GB1480417A (en) 1977-07-20

Family

ID=23642789

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45059/74A Expired GB1480417A (en) 1973-11-12 1974-10-17 Segmental readout device having magnetic circuit components

Country Status (6)

Country Link
US (1) US3886545A (en)
JP (1) JPS5630872B2 (en)
CA (1) CA1008148A (en)
DE (1) DE2448633C2 (en)
FR (1) FR2251063B1 (en)
GB (1) GB1480417A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937210A1 (en) * 1978-09-18 1980-03-27 Bobak DISPLAY DEVICE AND METHOD FOR MAKING POINT MATRIX IMAGES VISIBLE

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4070668A (en) * 1976-06-21 1978-01-24 Citizen Watch Company Limited Display device
US4117478A (en) * 1976-10-12 1978-09-26 The Staver Company, Incorporated Variable character display device
JPS5849870B2 (en) * 1978-05-23 1983-11-07 日方 若竹 display device
US4308528A (en) * 1978-12-28 1981-12-29 Kienzle Apparate Gmbh Electromechanically driven digital indicating device
DE2856447A1 (en) * 1978-12-28 1980-07-10 Kienzle Apparate Gmbh ELECTROMECHANICAL OPERATING NUMBER DISPLAY DEVICE
JPS5943586Y2 (en) * 1979-02-09 1984-12-25 株式会社テイ・アイ・シイ・シチズン display element
US4223464A (en) * 1979-03-22 1980-09-23 Ferranti-Packard Limited Display or indicator element
US4393362A (en) * 1982-01-18 1983-07-12 The Staver Company, Inc. Electromagnetic indicator having a rotor disposable in discrete positions
US4566210A (en) * 1983-06-13 1986-01-28 Nei Canada Limited Display device
US9917496B2 (en) 2014-09-08 2018-03-13 Victor H. Nelson Latching sector motor actuator and for a failsafe sector motor actuator having an available operating range not limited to 90°
US11949301B2 (en) * 2022-08-04 2024-04-02 Rogelio Timbol Serafica Hybrid electric fuel cell power plant

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1018338B (en) * 1954-10-20 1957-10-24 Plessey Co Ltd Display device operated by a rotatable permanent magnet armature
US3096594A (en) * 1960-06-17 1963-07-09 Allard Instr Corp Variable exhibitor
US3469258A (en) * 1966-11-04 1969-09-23 Ferranti Packard Ltd Rotating magnetically actuated display or indicator
US3623084A (en) * 1968-05-22 1971-11-23 Veeder Industries Inc Magnetic indicator with capacitor connected coils
US3668700A (en) * 1969-11-14 1972-06-06 Allard Instr Corp Segmental readout device
US3634857A (en) * 1970-03-24 1972-01-11 Miniature Elect Components Drum indicator
DE2029943A1 (en) * 1970-06-18 1971-12-23 Beck G Device for displaying fixed and moving information, especially for displaying large areas
JPS5111341Y2 (en) * 1971-08-31 1976-03-26
JPS5247983Y2 (en) * 1972-08-22 1977-10-31
JPS5111341U (en) * 1974-07-12 1976-01-27

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2937210A1 (en) * 1978-09-18 1980-03-27 Bobak DISPLAY DEVICE AND METHOD FOR MAKING POINT MATRIX IMAGES VISIBLE

Also Published As

Publication number Publication date
FR2251063B1 (en) 1978-10-13
JPS5630872B2 (en) 1981-07-17
DE2448633A1 (en) 1975-05-15
FR2251063A1 (en) 1975-06-06
DE2448633C2 (en) 1983-09-01
CA1008148A (en) 1977-04-05
US3886545A (en) 1975-05-27
JPS5081439A (en) 1975-07-02

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19941016